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<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Copyright (c) 2004-2011 QOS.ch<a name="line.2"></a>
<span class="sourceLineNo">003</span> * All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * Permission is hereby granted, free  of charge, to any person obtaining<a name="line.5"></a>
<span class="sourceLineNo">006</span> * a  copy  of this  software  and  associated  documentation files  (the<a name="line.6"></a>
<span class="sourceLineNo">007</span> * "Software"), to  deal in  the Software without  restriction, including<a name="line.7"></a>
<span class="sourceLineNo">008</span> * without limitation  the rights to  use, copy, modify,  merge, publish,<a name="line.8"></a>
<span class="sourceLineNo">009</span> * distribute,  sublicense, and/or sell  copies of  the Software,  and to<a name="line.9"></a>
<span class="sourceLineNo">010</span> * permit persons to whom the Software  is furnished to do so, subject to<a name="line.10"></a>
<span class="sourceLineNo">011</span> * the following conditions:<a name="line.11"></a>
<span class="sourceLineNo">012</span> *<a name="line.12"></a>
<span class="sourceLineNo">013</span> * The  above  copyright  notice  and  this permission  notice  shall  be<a name="line.13"></a>
<span class="sourceLineNo">014</span> * included in all copies or substantial portions of the Software.<a name="line.14"></a>
<span class="sourceLineNo">015</span> *<a name="line.15"></a>
<span class="sourceLineNo">016</span> * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,<a name="line.16"></a>
<span class="sourceLineNo">017</span> * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF<a name="line.17"></a>
<span class="sourceLineNo">018</span> * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND<a name="line.18"></a>
<span class="sourceLineNo">019</span> * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE<a name="line.19"></a>
<span class="sourceLineNo">020</span> * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION<a name="line.20"></a>
<span class="sourceLineNo">021</span> * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION<a name="line.21"></a>
<span class="sourceLineNo">022</span> * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.<a name="line.22"></a>
<span class="sourceLineNo">023</span> *<a name="line.23"></a>
<span class="sourceLineNo">024</span> */<a name="line.24"></a>
<span class="sourceLineNo">025</span>package org.slf4j.helpers;<a name="line.25"></a>
<span class="sourceLineNo">026</span><a name="line.26"></a>
<span class="sourceLineNo">027</span>import java.text.MessageFormat;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import java.util.HashMap;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import java.util.Map;<a name="line.29"></a>
<span class="sourceLineNo">030</span><a name="line.30"></a>
<span class="sourceLineNo">031</span>// contributors: lizongbo: proposed special treatment of array parameter values<a name="line.31"></a>
<span class="sourceLineNo">032</span>// Joern Huxhorn: pointed out double[] omission, suggested deep array copy<a name="line.32"></a>
<span class="sourceLineNo">033</span>/**<a name="line.33"></a>
<span class="sourceLineNo">034</span> * Formats messages according to very simple substitution rules. Substitutions<a name="line.34"></a>
<span class="sourceLineNo">035</span> * can be made 1, 2 or more arguments.<a name="line.35"></a>
<span class="sourceLineNo">036</span> *<a name="line.36"></a>
<span class="sourceLineNo">037</span> * &lt;p&gt;<a name="line.37"></a>
<span class="sourceLineNo">038</span> * For example,<a name="line.38"></a>
<span class="sourceLineNo">039</span> *<a name="line.39"></a>
<span class="sourceLineNo">040</span> * &lt;pre&gt;<a name="line.40"></a>
<span class="sourceLineNo">041</span> * MessageFormatter.format(&amp;quot;Hi {}.&amp;quot;, &amp;quot;there&amp;quot;)<a name="line.41"></a>
<span class="sourceLineNo">042</span> * &lt;/pre&gt;<a name="line.42"></a>
<span class="sourceLineNo">043</span> *<a name="line.43"></a>
<span class="sourceLineNo">044</span> * will return the string "Hi there.".<a name="line.44"></a>
<span class="sourceLineNo">045</span> * &lt;p&gt;<a name="line.45"></a>
<span class="sourceLineNo">046</span> * The {} pair is called the &lt;em&gt;formatting anchor&lt;/em&gt;. It serves to designate<a name="line.46"></a>
<span class="sourceLineNo">047</span> * the location where arguments need to be substituted within the message<a name="line.47"></a>
<span class="sourceLineNo">048</span> * pattern.<a name="line.48"></a>
<span class="sourceLineNo">049</span> * &lt;p&gt;<a name="line.49"></a>
<span class="sourceLineNo">050</span> * In case your message contains the '{' or the '}' character, you do not have<a name="line.50"></a>
<span class="sourceLineNo">051</span> * to do anything special unless the '}' character immediately follows '{'. For<a name="line.51"></a>
<span class="sourceLineNo">052</span> * example,<a name="line.52"></a>
<span class="sourceLineNo">053</span> *<a name="line.53"></a>
<span class="sourceLineNo">054</span> * &lt;pre&gt;<a name="line.54"></a>
<span class="sourceLineNo">055</span> * MessageFormatter.format(&amp;quot;Set {1,2,3} is not equal to {}.&amp;quot;, &amp;quot;1,2&amp;quot;);<a name="line.55"></a>
<span class="sourceLineNo">056</span> * &lt;/pre&gt;<a name="line.56"></a>
<span class="sourceLineNo">057</span> *<a name="line.57"></a>
<span class="sourceLineNo">058</span> * will return the string "Set {1,2,3} is not equal to 1,2.".<a name="line.58"></a>
<span class="sourceLineNo">059</span> *<a name="line.59"></a>
<span class="sourceLineNo">060</span> * &lt;p&gt;<a name="line.60"></a>
<span class="sourceLineNo">061</span> * If for whatever reason you need to place the string "{}" in the message<a name="line.61"></a>
<span class="sourceLineNo">062</span> * without its &lt;em&gt;formatting anchor&lt;/em&gt; meaning, then you need to escape the<a name="line.62"></a>
<span class="sourceLineNo">063</span> * '{' character with '\', that is the backslash character. Only the '{'<a name="line.63"></a>
<span class="sourceLineNo">064</span> * character should be escaped. There is no need to escape the '}' character.<a name="line.64"></a>
<span class="sourceLineNo">065</span> * For example,<a name="line.65"></a>
<span class="sourceLineNo">066</span> *<a name="line.66"></a>
<span class="sourceLineNo">067</span> * &lt;pre&gt;<a name="line.67"></a>
<span class="sourceLineNo">068</span> * MessageFormatter.format(&amp;quot;Set \\{} is not equal to {}.&amp;quot;, &amp;quot;1,2&amp;quot;);<a name="line.68"></a>
<span class="sourceLineNo">069</span> * &lt;/pre&gt;<a name="line.69"></a>
<span class="sourceLineNo">070</span> *<a name="line.70"></a>
<span class="sourceLineNo">071</span> * will return the string "Set {} is not equal to 1,2.".<a name="line.71"></a>
<span class="sourceLineNo">072</span> *<a name="line.72"></a>
<span class="sourceLineNo">073</span> * &lt;p&gt;<a name="line.73"></a>
<span class="sourceLineNo">074</span> * The escaping behavior just described can be overridden by escaping the escape<a name="line.74"></a>
<span class="sourceLineNo">075</span> * character '\'. Calling<a name="line.75"></a>
<span class="sourceLineNo">076</span> *<a name="line.76"></a>
<span class="sourceLineNo">077</span> * &lt;pre&gt;<a name="line.77"></a>
<span class="sourceLineNo">078</span> * MessageFormatter.format(&amp;quot;File name is C:\\\\{}.&amp;quot;, &amp;quot;file.zip&amp;quot;);<a name="line.78"></a>
<span class="sourceLineNo">079</span> * &lt;/pre&gt;<a name="line.79"></a>
<span class="sourceLineNo">080</span> *<a name="line.80"></a>
<span class="sourceLineNo">081</span> * will return the string "File name is C:\file.zip".<a name="line.81"></a>
<span class="sourceLineNo">082</span> *<a name="line.82"></a>
<span class="sourceLineNo">083</span> * &lt;p&gt;<a name="line.83"></a>
<span class="sourceLineNo">084</span> * The formatting conventions are different than those of {@link MessageFormat}<a name="line.84"></a>
<span class="sourceLineNo">085</span> * which ships with the Java platform. This is justified by the fact that<a name="line.85"></a>
<span class="sourceLineNo">086</span> * SLF4J's implementation is 10 times faster than that of {@link MessageFormat}.<a name="line.86"></a>
<span class="sourceLineNo">087</span> * This local performance difference is both measurable and significant in the<a name="line.87"></a>
<span class="sourceLineNo">088</span> * larger context of the complete logging processing chain.<a name="line.88"></a>
<span class="sourceLineNo">089</span> *<a name="line.89"></a>
<span class="sourceLineNo">090</span> * &lt;p&gt;<a name="line.90"></a>
<span class="sourceLineNo">091</span> * See also {@link #format(String, Object)},<a name="line.91"></a>
<span class="sourceLineNo">092</span> * {@link #format(String, Object, Object)} and<a name="line.92"></a>
<span class="sourceLineNo">093</span> * {@link #arrayFormat(String, Object[])} methods for more details.<a name="line.93"></a>
<span class="sourceLineNo">094</span> *<a name="line.94"></a>
<span class="sourceLineNo">095</span> * @author Ceki G&amp;uuml;lc&amp;uuml;<a name="line.95"></a>
<span class="sourceLineNo">096</span> * @author Joern Huxhorn<a name="line.96"></a>
<span class="sourceLineNo">097</span> */<a name="line.97"></a>
<span class="sourceLineNo">098</span>final public class MessageFormatter {<a name="line.98"></a>
<span class="sourceLineNo">099</span>    static final char DELIM_START = '{';<a name="line.99"></a>
<span class="sourceLineNo">100</span>    static final char DELIM_STOP = '}';<a name="line.100"></a>
<span class="sourceLineNo">101</span>    static final String DELIM_STR = "{}";<a name="line.101"></a>
<span class="sourceLineNo">102</span>    private static final char ESCAPE_CHAR = '\\';<a name="line.102"></a>
<span class="sourceLineNo">103</span><a name="line.103"></a>
<span class="sourceLineNo">104</span>    /**<a name="line.104"></a>
<span class="sourceLineNo">105</span>     * Performs single argument substitution for the 'messagePattern' passed as<a name="line.105"></a>
<span class="sourceLineNo">106</span>     * parameter.<a name="line.106"></a>
<span class="sourceLineNo">107</span>     * &lt;p&gt;<a name="line.107"></a>
<span class="sourceLineNo">108</span>     * For example,<a name="line.108"></a>
<span class="sourceLineNo">109</span>     *<a name="line.109"></a>
<span class="sourceLineNo">110</span>     * &lt;pre&gt;<a name="line.110"></a>
<span class="sourceLineNo">111</span>     * MessageFormatter.format(&amp;quot;Hi {}.&amp;quot;, &amp;quot;there&amp;quot;);<a name="line.111"></a>
<span class="sourceLineNo">112</span>     * &lt;/pre&gt;<a name="line.112"></a>
<span class="sourceLineNo">113</span>     *<a name="line.113"></a>
<span class="sourceLineNo">114</span>     * will return the string "Hi there.".<a name="line.114"></a>
<span class="sourceLineNo">115</span>     * &lt;p&gt;<a name="line.115"></a>
<span class="sourceLineNo">116</span>     *<a name="line.116"></a>
<span class="sourceLineNo">117</span>     * @param messagePattern<a name="line.117"></a>
<span class="sourceLineNo">118</span>     *          The message pattern which will be parsed and formatted<a name="line.118"></a>
<span class="sourceLineNo">119</span>     * @param arg<a name="line.119"></a>
<span class="sourceLineNo">120</span>     *          The argument to be substituted in place of the formatting anchor<a name="line.120"></a>
<span class="sourceLineNo">121</span>     * @return The formatted message<a name="line.121"></a>
<span class="sourceLineNo">122</span>     */<a name="line.122"></a>
<span class="sourceLineNo">123</span>    final public static FormattingTuple format(String messagePattern, Object arg) {<a name="line.123"></a>
<span class="sourceLineNo">124</span>        return arrayFormat(messagePattern, new Object[] { arg });<a name="line.124"></a>
<span class="sourceLineNo">125</span>    }<a name="line.125"></a>
<span class="sourceLineNo">126</span><a name="line.126"></a>
<span class="sourceLineNo">127</span>    /**<a name="line.127"></a>
<span class="sourceLineNo">128</span>     *<a name="line.128"></a>
<span class="sourceLineNo">129</span>     * Performs a two argument substitution for the 'messagePattern' passed as<a name="line.129"></a>
<span class="sourceLineNo">130</span>     * parameter.<a name="line.130"></a>
<span class="sourceLineNo">131</span>     * &lt;p&gt;<a name="line.131"></a>
<span class="sourceLineNo">132</span>     * For example,<a name="line.132"></a>
<span class="sourceLineNo">133</span>     *<a name="line.133"></a>
<span class="sourceLineNo">134</span>     * &lt;pre&gt;<a name="line.134"></a>
<span class="sourceLineNo">135</span>     * MessageFormatter.format(&amp;quot;Hi {}. My name is {}.&amp;quot;, &amp;quot;Alice&amp;quot;, &amp;quot;Bob&amp;quot;);<a name="line.135"></a>
<span class="sourceLineNo">136</span>     * &lt;/pre&gt;<a name="line.136"></a>
<span class="sourceLineNo">137</span>     *<a name="line.137"></a>
<span class="sourceLineNo">138</span>     * will return the string "Hi Alice. My name is Bob.".<a name="line.138"></a>
<span class="sourceLineNo">139</span>     *<a name="line.139"></a>
<span class="sourceLineNo">140</span>     * @param messagePattern<a name="line.140"></a>
<span class="sourceLineNo">141</span>     *          The message pattern which will be parsed and formatted<a name="line.141"></a>
<span class="sourceLineNo">142</span>     * @param arg1<a name="line.142"></a>
<span class="sourceLineNo">143</span>     *          The argument to be substituted in place of the first formatting<a name="line.143"></a>
<span class="sourceLineNo">144</span>     *          anchor<a name="line.144"></a>
<span class="sourceLineNo">145</span>     * @param arg2<a name="line.145"></a>
<span class="sourceLineNo">146</span>     *          The argument to be substituted in place of the second formatting<a name="line.146"></a>
<span class="sourceLineNo">147</span>     *          anchor<a name="line.147"></a>
<span class="sourceLineNo">148</span>     * @return The formatted message<a name="line.148"></a>
<span class="sourceLineNo">149</span>     */<a name="line.149"></a>
<span class="sourceLineNo">150</span>    final public static FormattingTuple format(final String messagePattern, Object arg1, Object arg2) {<a name="line.150"></a>
<span class="sourceLineNo">151</span>        return arrayFormat(messagePattern, new Object[] { arg1, arg2 });<a name="line.151"></a>
<span class="sourceLineNo">152</span>    }<a name="line.152"></a>
<span class="sourceLineNo">153</span><a name="line.153"></a>
<span class="sourceLineNo">154</span><a name="line.154"></a>
<span class="sourceLineNo">155</span>    static final Throwable getThrowableCandidate(Object[] argArray) {<a name="line.155"></a>
<span class="sourceLineNo">156</span>        if (argArray == null || argArray.length == 0) {<a name="line.156"></a>
<span class="sourceLineNo">157</span>            return null;<a name="line.157"></a>
<span class="sourceLineNo">158</span>        }<a name="line.158"></a>
<span class="sourceLineNo">159</span><a name="line.159"></a>
<span class="sourceLineNo">160</span>        final Object lastEntry = argArray[argArray.length - 1];<a name="line.160"></a>
<span class="sourceLineNo">161</span>        if (lastEntry instanceof Throwable) {<a name="line.161"></a>
<span class="sourceLineNo">162</span>            return (Throwable) lastEntry;<a name="line.162"></a>
<span class="sourceLineNo">163</span>        }<a name="line.163"></a>
<span class="sourceLineNo">164</span>        return null;<a name="line.164"></a>
<span class="sourceLineNo">165</span>    }<a name="line.165"></a>
<span class="sourceLineNo">166</span><a name="line.166"></a>
<span class="sourceLineNo">167</span>    final public static FormattingTuple arrayFormat(final String messagePattern, final Object[] argArray) {<a name="line.167"></a>
<span class="sourceLineNo">168</span>        Throwable throwableCandidate = getThrowableCandidate(argArray);<a name="line.168"></a>
<span class="sourceLineNo">169</span>        Object[] args = argArray;<a name="line.169"></a>
<span class="sourceLineNo">170</span>        if (throwableCandidate != null) {<a name="line.170"></a>
<span class="sourceLineNo">171</span>            args = trimmedCopy(argArray);<a name="line.171"></a>
<span class="sourceLineNo">172</span>        }<a name="line.172"></a>
<span class="sourceLineNo">173</span>        return arrayFormat(messagePattern, args, throwableCandidate);<a name="line.173"></a>
<span class="sourceLineNo">174</span>    }<a name="line.174"></a>
<span class="sourceLineNo">175</span><a name="line.175"></a>
<span class="sourceLineNo">176</span>    private static Object[] trimmedCopy(Object[] argArray) {<a name="line.176"></a>
<span class="sourceLineNo">177</span>        if (argArray == null || argArray.length == 0) {<a name="line.177"></a>
<span class="sourceLineNo">178</span>            throw new IllegalStateException("non-sensical empty or null argument array");<a name="line.178"></a>
<span class="sourceLineNo">179</span>        }<a name="line.179"></a>
<span class="sourceLineNo">180</span>        final int trimemdLen = argArray.length - 1;<a name="line.180"></a>
<span class="sourceLineNo">181</span>        Object[] trimmed = new Object[trimemdLen];<a name="line.181"></a>
<span class="sourceLineNo">182</span>        System.arraycopy(argArray, 0, trimmed, 0, trimemdLen);<a name="line.182"></a>
<span class="sourceLineNo">183</span>        return trimmed;<a name="line.183"></a>
<span class="sourceLineNo">184</span>    }<a name="line.184"></a>
<span class="sourceLineNo">185</span><a name="line.185"></a>
<span class="sourceLineNo">186</span>    final public static FormattingTuple arrayFormat(final String messagePattern, final Object[] argArray, Throwable throwable) {<a name="line.186"></a>
<span class="sourceLineNo">187</span><a name="line.187"></a>
<span class="sourceLineNo">188</span>        if (messagePattern == null) {<a name="line.188"></a>
<span class="sourceLineNo">189</span>            return new FormattingTuple(null, argArray, throwable);<a name="line.189"></a>
<span class="sourceLineNo">190</span>        }<a name="line.190"></a>
<span class="sourceLineNo">191</span><a name="line.191"></a>
<span class="sourceLineNo">192</span>        if (argArray == null) {<a name="line.192"></a>
<span class="sourceLineNo">193</span>            return new FormattingTuple(messagePattern);<a name="line.193"></a>
<span class="sourceLineNo">194</span>        }<a name="line.194"></a>
<span class="sourceLineNo">195</span><a name="line.195"></a>
<span class="sourceLineNo">196</span>        int i = 0;<a name="line.196"></a>
<span class="sourceLineNo">197</span>        int j;<a name="line.197"></a>
<span class="sourceLineNo">198</span>        // use string builder for better multicore performance<a name="line.198"></a>
<span class="sourceLineNo">199</span>        StringBuilder sbuf = new StringBuilder(messagePattern.length() + 50);<a name="line.199"></a>
<span class="sourceLineNo">200</span><a name="line.200"></a>
<span class="sourceLineNo">201</span>        int L;<a name="line.201"></a>
<span class="sourceLineNo">202</span>        for (L = 0; L &lt; argArray.length; L++) {<a name="line.202"></a>
<span class="sourceLineNo">203</span><a name="line.203"></a>
<span class="sourceLineNo">204</span>            j = messagePattern.indexOf(DELIM_STR, i);<a name="line.204"></a>
<span class="sourceLineNo">205</span><a name="line.205"></a>
<span class="sourceLineNo">206</span>            if (j == -1) {<a name="line.206"></a>
<span class="sourceLineNo">207</span>                // no more variables<a name="line.207"></a>
<span class="sourceLineNo">208</span>                if (i == 0) { // this is a simple string<a name="line.208"></a>
<span class="sourceLineNo">209</span>                    return new FormattingTuple(messagePattern, argArray, throwable);<a name="line.209"></a>
<span class="sourceLineNo">210</span>                } else { // add the tail string which contains no variables and return<a name="line.210"></a>
<span class="sourceLineNo">211</span>                    // the result.<a name="line.211"></a>
<span class="sourceLineNo">212</span>                    sbuf.append(messagePattern, i, messagePattern.length());<a name="line.212"></a>
<span class="sourceLineNo">213</span>                    return new FormattingTuple(sbuf.toString(), argArray, throwable);<a name="line.213"></a>
<span class="sourceLineNo">214</span>                }<a name="line.214"></a>
<span class="sourceLineNo">215</span>            } else {<a name="line.215"></a>
<span class="sourceLineNo">216</span>                if (isEscapedDelimeter(messagePattern, j)) {<a name="line.216"></a>
<span class="sourceLineNo">217</span>                    if (!isDoubleEscaped(messagePattern, j)) {<a name="line.217"></a>
<span class="sourceLineNo">218</span>                        L--; // DELIM_START was escaped, thus should not be incremented<a name="line.218"></a>
<span class="sourceLineNo">219</span>                        sbuf.append(messagePattern, i, j - 1);<a name="line.219"></a>
<span class="sourceLineNo">220</span>                        sbuf.append(DELIM_START);<a name="line.220"></a>
<span class="sourceLineNo">221</span>                        i = j + 1;<a name="line.221"></a>
<span class="sourceLineNo">222</span>                    } else {<a name="line.222"></a>
<span class="sourceLineNo">223</span>                        // The escape character preceding the delimiter start is<a name="line.223"></a>
<span class="sourceLineNo">224</span>                        // itself escaped: "abc x:\\{}"<a name="line.224"></a>
<span class="sourceLineNo">225</span>                        // we have to consume one backward slash<a name="line.225"></a>
<span class="sourceLineNo">226</span>                        sbuf.append(messagePattern, i, j - 1);<a name="line.226"></a>
<span class="sourceLineNo">227</span>                        deeplyAppendParameter(sbuf, argArray[L], new HashMap&lt;Object[], Object&gt;());<a name="line.227"></a>
<span class="sourceLineNo">228</span>                        i = j + 2;<a name="line.228"></a>
<span class="sourceLineNo">229</span>                    }<a name="line.229"></a>
<span class="sourceLineNo">230</span>                } else {<a name="line.230"></a>
<span class="sourceLineNo">231</span>                    // normal case<a name="line.231"></a>
<span class="sourceLineNo">232</span>                    sbuf.append(messagePattern, i, j);<a name="line.232"></a>
<span class="sourceLineNo">233</span>                    deeplyAppendParameter(sbuf, argArray[L], new HashMap&lt;Object[], Object&gt;());<a name="line.233"></a>
<span class="sourceLineNo">234</span>                    i = j + 2;<a name="line.234"></a>
<span class="sourceLineNo">235</span>                }<a name="line.235"></a>
<span class="sourceLineNo">236</span>            }<a name="line.236"></a>
<span class="sourceLineNo">237</span>        }<a name="line.237"></a>
<span class="sourceLineNo">238</span>        // append the characters following the last {} pair.<a name="line.238"></a>
<span class="sourceLineNo">239</span>        sbuf.append(messagePattern, i, messagePattern.length());<a name="line.239"></a>
<span class="sourceLineNo">240</span>        return new FormattingTuple(sbuf.toString(), argArray, throwable);<a name="line.240"></a>
<span class="sourceLineNo">241</span>    }<a name="line.241"></a>
<span class="sourceLineNo">242</span><a name="line.242"></a>
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<span class="sourceLineNo">394</span>        final int len = a.length;<a name="line.394"></a>
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<span class="sourceLineNo">403</span>    private static void doubleArrayAppend(StringBuilder sbuf, double[] a) {<a name="line.403"></a>
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<span class="sourceLineNo">405</span>        final int len = a.length;<a name="line.405"></a>
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<span class="sourceLineNo">407</span>            sbuf.append(a[i]);<a name="line.407"></a>
<span class="sourceLineNo">408</span>            if (i != len - 1)<a name="line.408"></a>
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<span class="sourceLineNo">411</span>        sbuf.append(']');<a name="line.411"></a>
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<span class="sourceLineNo">413</span><a name="line.413"></a>
<span class="sourceLineNo">414</span>}<a name="line.414"></a>




























































</pre>
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